NL7509791A - Controlling steel prodn. in oxygen or converter process - on the basis of the gas compsn. in the off-gas line - Google Patents

Controlling steel prodn. in oxygen or converter process - on the basis of the gas compsn. in the off-gas line

Info

Publication number
NL7509791A
NL7509791A NL7509791A NL7509791A NL7509791A NL 7509791 A NL7509791 A NL 7509791A NL 7509791 A NL7509791 A NL 7509791A NL 7509791 A NL7509791 A NL 7509791A NL 7509791 A NL7509791 A NL 7509791A
Authority
NL
Netherlands
Prior art keywords
gas
basis
compsn
oxygen
temp
Prior art date
Application number
NL7509791A
Other languages
Dutch (nl)
Original Assignee
Hoogovens Ijmuiden Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoogovens Ijmuiden Bv filed Critical Hoogovens Ijmuiden Bv
Priority to NL7509791A priority Critical patent/NL7509791A/en
Publication of NL7509791A publication Critical patent/NL7509791A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

Prodn. is controlled using a process model which is continuously modified by input data on the CO2/(CO+CO2) ratio at the mouth of the converter, as calcd. from the measured gas compsn. in the off-gas line. The temp. of the steel in the converter is adjusted on the basis of these data. The steel temp. can be adjusted by vertical adjustment of the oxygen lance and/or by adding metered amts. of coolant, e.g. iron scrap. The process can be combined with conventional measurement of the carbon content of the melt by measuring the decarbonisation rate at the end of the blast process, and/or with conventional temp. measurement during or immediately after the blast by means of a vertical measuring lance.
NL7509791A 1975-08-18 1975-08-18 Controlling steel prodn. in oxygen or converter process - on the basis of the gas compsn. in the off-gas line NL7509791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7509791A NL7509791A (en) 1975-08-18 1975-08-18 Controlling steel prodn. in oxygen or converter process - on the basis of the gas compsn. in the off-gas line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7509791A NL7509791A (en) 1975-08-18 1975-08-18 Controlling steel prodn. in oxygen or converter process - on the basis of the gas compsn. in the off-gas line

Publications (1)

Publication Number Publication Date
NL7509791A true NL7509791A (en) 1977-02-22

Family

ID=19824314

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7509791A NL7509791A (en) 1975-08-18 1975-08-18 Controlling steel prodn. in oxygen or converter process - on the basis of the gas compsn. in the off-gas line

Country Status (1)

Country Link
NL (1) NL7509791A (en)

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Legal Events

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